After completing the first three jump elements in her free skate on Saturday, Czisny fell on the landing of a triple flip, dislocating her left hip. She was transported to nearby Appleton Medical Center, where Dr. Todd Smith, a specialist in orthopedic sports medicine, manipulated the hip back into alignment.

The 25-year-old skater was briefly sedated, and Dr. Smith was able to complete the treatment in half an hour, said Czisny's coach, Jason Dungjen.

Czisny's leg was placed in a stabilizing brace as a precaution, and she departed the hospital early Sunday morning.

"We were very lucky, in the sense that Roger Glenn (a longtime international judge) was there," Dungjen said. "He lives in Appleton and knows the former head of orthopedics (Dr. John Lindstrom) at the hospital. [Dr. Lindstrom] alerted Dr. Smith, and he met us in the ER, so Alissa got the best care she could have gotten anywhere."

Czisny has scheduled a follow-up appointment in Nashville, Tenn., next week with Dr. Thomas Byrd, who repaired her labral tear last year.

"They did a CAT scan in Appleton, which didn't show anything major," Dungjen said. "Right now, she is doing as well as can be expected. Obviously, she is going to be sore. Best case, some normal physical therapy will strengthen the hip."

The two-time U.S. champion, who withdrew from the NHK Trophy in November, had successful surgery last June to repair a labral tear in her left hip. She had scheduled the Appleton event several weeks ago to be her first competition since the surgery.

"She has been skating her short for about two months and has been doing full run-throughs of her free for about a month and a half," Dungjen said. "We didn't want U.S. nationals to be her first event back. She needed to get out there and shake the cobwebs out, and the Appleton event was available."

Czisny was performing a new free skate, choreographed by Marina Zoueva to music from Max Steiner movie scores, including Gone with the Wind.

"Her short program in Appleton went well, and the free was going well, until this happened," Dungjen said. "Obviously, she is tremendously disappointed she cannot compete at nationals."